Question

Solve the system of equations-3x+y=5 and y=-7 give your answers in the form (#,#)

Answer 1

Answer:

$- 3x + y = 5 \\ \\ - 3x + ( - 7) = 5 \\ \\ - 3x - 7 = 5 \\ \\ - 3x = 5 + 7 \\ \\ - 3x = 12 \\ \\ x = - 4$